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United States Patent | 6,012,627 |
Wompner ,   et al. | January 11, 2000 |
A composite section features a base of light-weight metallic material as section component and at least one further profiled section component, in particular a profiled strip of another metallic material which is joined metallically as a surface layer to the base section during an extrusion process. Projecting out of the inner-lying face of the profiled strip and directed at the base is at least one projection and/or an additional element which are/is embedded in the base. Each additional element may delimit an undercut space which is filled in an interlocking manner by metallic material of the base.
Inventors: | Wompner; Diethelm (Bodman-Ludwigshafen, DE); Gluck; Joachim (Schenkenzell, DE); Bock; Uwe (Singen, DE) |
Assignee: | Alusuisse Technology & Management Ltd. (CH) |
Appl. No.: | 071222 |
Filed: | May 1, 1998 |
Mar 25, 1994[DE] | 44 10 688 | |
Jun 28, 1994[DE] | 44 22 533 |
Current U.S. Class: | 228/265; 228/235.1 |
Intern'l Class: | B23K 031/00 |
Field of Search: | 228/115,131,135,136,193,265,235.1 72/258,700 164/98 29/DIG. 47 |
3648343 | Mar., 1972 | Haller | 419/8. |
4300379 | Nov., 1981 | Johnson et al. | 72/258. |
4422569 | Dec., 1983 | Payne et al. | 228/173. |
5244746 | Sep., 1993 | Matsui et al. | 428/609. |